Edge-protecting clamp.



G. STIBHLB. EDGE PROTBGTING CLAMP. APPLICATION IILIAXD MALSO, 1908.

Patented Aug. 17, 1909 'UNITED sTATEs PATENT oEEIo-E.

p GUIDO STIEHLE. OF MEMMINGEN, GERMANY.v

EDGE-IEIRO'lECTINCi-l CLAMP.

T0 all 'whom 'it may concern:

Be it known that I, GUIDO STIEHLE, a subject of the King of Bavaria,residing at Memmingen, in the'Kingdom of Bavaria,

(lermanv Empire, have invented a certain new au uset'ul Idge-Prote'ctmgClamp, of

which t e 'following is a specification.

This invention relates to a protecting or gripping' device for the edgesot plates, mantles or the like consisting of vulcanized fiber or likematerial, such being found advanta- -ral Vcoils without the tibetmaterial being' penetrated. In this way the `fiberor like'- material. ispermanently held and protected without being injured or weakened by thegripping, whereby a very greatdurability,

1s secured for such fiber plates or mantlesgf In Figure l of theaccompanying drawings the invention is shown in longitudinal section forinstance on the lower edge of a casing or cover. a. is the casing orcover of f liber or like material and I; the protective easing or cover.45

metal ring rolled around in a spiral section, servmg as holder for theedge of the cover.

'This'metal ring receives between its two spirals the edge of the fibercasing or cover a, and grips it firmly between them, whereby" theprotective metal ring' is(r held firmlyv thereon without the use ofvseparate means of attachment, which injure the material of Q roundedbead at the end-of the body Where y the cover, and in which, as may beseen, no sharp corners or edges of' the metal pro-f teetive ring caninjure the" material of the i The protective device b may also serve ifit has its spiral coil on its inner side, as a support or flange for abottom c of the casing, so that this bottom does not need to beotherwiseseparately attached to the fiberor` like mantle and in sucheases.

.the mantle does-gnotbecome injured or Weakv ened by'sepaatefmeans ofattachment for thebott'o'm.,` H

Specification of Letters Patent.

Applicaton sied March so,

p Patented Aug. 17, 1909K@ 1908. Serial No. 424,114.

The gripping op holding plate or ring may as shown 1n 141g. 2, besomewhat pressed in as at l in its straight part which by rea- 55 son ofthe pressure thereby produced and the enlargement of diameter beneaththe pressed in place d, further assists in the firm retention of theprotective metal plate or `ring V) on the fiber or. like plate or mantlea.

At the inner end of the spiral coil of the protective metal plate orring Z), and the liber plate or mantle' a rolled up therein, the metalspiral and the fiber plate or mantle may extend to an equal extent, asshown in Fig. 2, or the fiber plate a may be rolled up further than themetal spiral, as shown in Fig. 3 for instance, instead of the spiral'of'the protective metal plate or ring project-jing internally beyond theber mantle a, as

v.shown in Fig. l. The spiral coil of the roteetive metal plate or ringband the fiber .plate or mantle a clamped in ity may be conft Atmuedseveral tunes, as shown? for instance' -`in Fig. 4. Of course the upperedge of the .75

plate or mantle may be clamped equallyas well as the lower edge. l YHaving now particularly4 described and ascertained the nature of my saidinvention vand in what manner the same is to be performed, I declarethat what I claim 'as new and desire to secure by Letters Patent is Inan edge protecting clam of the class described, the combination withabody of vulcanized fiber or analogous material having a circularinwardly coiled spiral margin, of a protective metal sheet having onemargin located against the 'outer face of the body, said sheet beingin'wardly coiled into a circular spiral that eXtends about the outerface of the body coil and has its inner edge housed Within thesame,"form1ng an '1n et the edge of the iberi or analogous material maybe rolled'up inthe metal coil Without 95 being injured by the inner edgeof the metal:-

Invvitness whereofI have hereunto set my hand 1n presence of tvvoWitnesses.

